One type of corn spirit (3)
I believe the answer is:
rye
'spirit' is the definition.
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for rye that I've seen before include "New York bread" , "Grass; whisky" , "Whiskey (US)" , "Wheat-like cereal plant" , "Type of whisky" .)